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chemistry vocab ch.2

chemistry vocabulary chapter 2

termdefinition
qualitatively property that is described without measurements
quantitatively property is measuredd and described by a number of standard units
weight measure of the force of gravity between 2 objects
mass measure of quantity of matter
kilogram SI standard unit of mass
balance an instrument used to determine the mass of an object by comparing the objects mass to known mass
length the distance covered by a straight line segment connecting two points
meter the standard unit of length
time interval between two occurrences
seconds unit of time
temperature a measure of the average kinetic energy of the particles composing a material
kelvin SI unit of temperature
accuracy how close a measurement is to the true or correct value for the quantity
precision how close a set of measurements for a quantity are to one another, regardless of whether the measurements are correct
significant digits all digits that occupy places for which actual measurements was made
counting numbers natural number; any cardinal number except zero
density mass per unit of volume
Created by: mariapanti
 

 



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